Spectrographic Voice Analysis Protocol (SAP): Convergent, Concurrent, and Accuracy Validity.

Objective: To verify the convergent and concurrent validity of the Spectrographic Voice Analysis Protocol (SAP) and its accuracy to discriminate dysphonic from nondysphonic patients.

Method: The study used 82 vowel /Ɛ/ samples and their respective narrowband spectrograms, analyzed with SAP. Cepstral peak prominence (CPP) and cepstral peak prominence smoothed (CPPS) verified the convergent validity of the SAP total score, while the general grade of vocal deviation (GG) verified the concurrent validity of the SAP total score.

Effectiveness of a Blended-Learning Intervention in Teachers' Vocal Health.

Objective: To verify the effectiveness of a blended-learning voice assistance program for elementary school teachers.

Study Design: Nonrandomized and comparative interventional clinical trial.

Methods: A total of 59 teachers participated; 33 of the 59 teachers participated in face-to-face learning (control group-CG), and 26 of the 59 teachers participated in blended learning (experimental group-EG).